[][src]Enum syn::ReturnType

pub enum ReturnType {
    Default,
    Type(RArrowBox<Type>),
}

Return type of a function signature.

This type is available if Syn is built with the "derive" or "full" feature.

Variants

Return type is not specified.

Functions default to () and closures default to type inference.

A particular type is returned.

Methods

impl ReturnType
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Trait Implementations

impl Parse for ReturnType
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impl Clone for ReturnType
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Performs copy-assignment from source. Read more

impl Eq for ReturnType
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impl PartialEq<ReturnType> for ReturnType
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impl Debug for ReturnType
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impl Hash for ReturnType
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Feeds a slice of this type into the given [Hasher]. Read more

impl ToTokens for ReturnType
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Convert self directly into a TokenStream object. Read more

Auto Trait Implementations

impl !Send for ReturnType

impl !Sync for ReturnType

Blanket Implementations

impl<T> Spanned for T where
    T: ToTokens
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impl<T> From for T
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impl<T, U> Into for T where
    U: From<T>, 
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impl<T> ToOwned for T where
    T: Clone
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impl<T, U> TryFrom for T where
    T: From<U>, 
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🔬 This is a nightly-only experimental API. (try_from)

The type returned in the event of a conversion error.

impl<T> Borrow for T where
    T: ?Sized
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impl<T> Any for T where
    T: 'static + ?Sized
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impl<T, U> TryInto for T where
    U: TryFrom<T>, 
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🔬 This is a nightly-only experimental API. (try_from)

The type returned in the event of a conversion error.

impl<T> BorrowMut for T where
    T: ?Sized
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impl<E> SpecializationError for E
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impl<T> Erased for T
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impl<T> Send for T where
    T: ?Sized
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impl<T> Sync for T where
    T: ?Sized
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impl<T> Erased for T